Physical activity monitoring based on accelerometry: validation and comparison with video observation

Details

Serval ID
serval:BIB_351277998080
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Physical activity monitoring based on accelerometry: validation and comparison with video observation
Journal
Medical and Biological Engineering and Computing
Author(s)
Aminian  K., Robert  P., Buchser  E. E., Rutschmann  B., Hayoz  D., Depairon  M.
ISSN
0140-0118 (Print)
Publication state
Published
Issued date
05/1999
Volume
37
Number
3
Pages
304-8
Notes
Journal Article --- Old month value: May
Abstract
The objective of this feasibility study is to evaluate the use of the 'Physilog' device, an ambulatory physical-activity recorder based on acceleration measurement, for the monitoring of daily physical activities. Accelerations measured at the level of the chest and the thigh are recorded by Physilog over a period of 1 h in five normal subjects. A specially designed studio-like room allowing the performance of most usual activities of everyday life is used. A video film synchronised with the Physilog is obtained for each subject to check the accuracy of the data derived from Physilog. Based on the analysis on the average and the deviation of the acceleration signal, an algorithm is developed to classify the activities in four categories, i.e. lying, sitting, standing and locomotion. Compared with the video observations, the results from the algorithm show an overall misclassification of 10.7%, which is mainly due to confusion between dynamic activities and the standing posture. In contrast, the misclassification between postures is negligible. It is concluded that Physilog can be used in the clinical setting for the reliable measurement and long-term recording of most usual physical activities.
Keywords
*Activities of Daily Living Algorithms Humans Monitoring, Physiologic/*instrumentation/methods Movement/*physiology *Neural Networks (Computer) Reproducibility of Results Video Recording
Pubmed
Web of science
Create date
17/01/2008 16:38
Last modification date
20/08/2019 13:22
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